Hospital bed



Nov. 4,1930. E. MUNS-ON 1,780,399

HOSPITAL BED Filed April 12, 1928 4 Sheets-Sheet 2 unlllil IN VEN TOR.

QY: 1930. E. L. MUNSON 0,

HOSPITAL BED Filed April 12, 1928 4 Sheets-Sheet 3 I. Ill 5i a R/ IN V EN TOR.

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HOSPITAL BED Filed April 12, 1928 4 Sheets-Sheet 4 mull! HHHHHII K WZINVENTOIR.

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Patented Nov. 4, 1930 PATENT OFFICE EDMUND LFMUNSON, OF MOUNT KISCO, NEW YORK HOSPITAL BED Application filed April 12,

My invention relates to improvements in hospital beds, and the object of my invention is to produce a bed in which a patient can be easily moved Without injury or strain so as to reverse his position in the bed or to hold him at a desired inclination. In certain diseases it is oftendes-irable to reverse or change the position of a patient, and this is generally difiicult for the nurse or'attendant V1 and is also dangerous to the patient. It is also, as is well known, often desirable to have the patient lie at an inclination either for comfort, or drainage, or otherwise. .My invention is intended to facilitate the changing of position, and to relieve the nurse or attendant from exertion. In carrying out my idea I have two bed parts or mattress sup-- .ports, one of which is in a fixed vertical position but can turn over, and the other of which 2 is rotatable with relation to the first, so that ifthepatient is lying on his back, for instance, on the top bed, the lower bed and mattress can by asimple mechanical movement be swung around over the patient and the bed on which he lies, then the mattress thus positioned can be gradually brought down upon the patient and swung back to its initial position, the upper bedturning on its pivot, and thus the patient will be lying on the second mattress and on his face instead of on hisback. My invention is further intended to produce a positive, safe and easily operated means of accomplishing the foregoing and other.

movements which will appear more clearly in the description which follows.

Reference is to be had to the accompanying drawings forming a part of this specificatlon,

in which similar reference characters indi cate corresponding parts inall the views. Figure 1 is a plan view of a bed showing "my improvements.

Figure 2 is a side elevationthereof. Figure 3 is a broken cross section of the bed showing the normally lower bed swung to position above the upper bed.

Figure 4 is aview similar to Figure 3 but withthe uppermost bed moved downward towards the one beneath. i 1

Figure 5 is a cross section showing one of the beds at an inclination. v

1928. Serial No. 269,501.

Figure 6 is a View similar to Figure 5 but with the two beds in different relation.

Figure 7 is a longitudinal sectional elevation of the complete bed.

'Figure 8 is a cross section showing the two beds or mattress supports in normal position.

Figure 9 is 'a sectional detail showing means for turning and securing the beds.

Figure 10 is an elevation of the structure shown in Figure 9.

t Figure 11 is an enlarged detail of one of the lower bed hangers and its adjusting means.

Figure 12 is a section on the line 1212 of Figure 11, and

Figure 18 is a section on the line 1313 of Figure 11 a 1 The bedstead can be conventional, and I have shown it provided with a head board 10 and foot board 11 which are similar, and in the upper part of the bedstead is supported a bed'having inner and outer frames 12 and 13 which are preferably of angle iron, and the inner frame 13 is hinged on one side as shown at 14' to the outer frame 12, and on the opposite side and upper part is a latch and button 15 which can be turned so as to prevent the bed or mattress frames from relative movement. On the other hand if it is desired to swing the inner frame so as to facilitate removing the mattress 24 or for other reasons, it can be done.

The frame 12 is centrally pivoted at its ends on a trunnion 16 (see Figure 12) which can be supported in a cross piece 10 on the head board 10 and-a similar arrangement obtains on the foot board 11. The frames 12 and 13 can be secured against tilting on their pivots by any convenient means. For example the frame 12 is shown as lying opposite the-bracket 17 at the bed ends, and secured to the bed frame, while a removable pin 18 extends through the bracket and into the part of the frame 12. If it is desired to tilt the upper bed and its mattress 2 1, the pins 18 can be removed and the bed tilted, and it can be secured at the desired inclination by means of the qu adrant19 secured to the frame 12. Thishas holes 20 therein, and thesereceivea pin 21 (see Figures 9 and "with one side of the frame 12, and can be,-

j stood that this connection is shown by way is suspended on ahanger by means of which it may be swung'a'i'ound'to position-"above the frames 12 and 13. The hanger. is sus-. pended from trunnions 16, and I haves'hown" it comprising plates 27 at the bed ends, and

rigid on these plates are sprocket wheels 28 which connect by'chains 29 with sprocket wheels 30 on the shaft 31 which runs parallel turned by a removable crank 47 which will the hanger plates 27.

The swinging bed represented by the frames 25 and 26 is movable back and forth with relation to the other bed, "and to this end it has fixed nuts 35 thereon which fit? the screws 36, and these are mounted in bear? 'ings 37 and 38 onthe hanger plates 27, so

that by rotating the screws the motion will 'be transmitted through the nut to the swinging bed and it can be moved back and fortl 1 as stated.

As a convenient means of actuating the] 1S,rotating-theframe 12 slightly on the trun- 1110115 16, and fix ng the position by means of screws I connect them at both ends with a s ngle operating shaft, and it w1ll be underof exam-1e as other mechanical movements might just as well be substituted. As illus trated, the screws 36 at each end of the bed are provided with beveled pinions 39 which mesh with pinions 40 on 'the shafts 41 extendinglengthWise of the bed and on opposite sides. The supporting connection between'the screws and shaft can be'by means of brackets 12. Transverse'shafts 4A are provided with pinions 43which' alsdengage the 'pinionsor gears 39, and the shaft 441 can be supported in brackets 45 attached to the plates 27; One end of the shaft 41 is squared to receive an operating crank'47, and this same crank can be applied to thesquared the under side.

moved back and forth as desired with relation to the bed 1213.

Each of the beds is provided with a mattress, the upper one having a mattress 2 1 and the lower a mattress 24, and the mattresses can be strapped or otherwise fastened to their frames, andthe frames'can' of course be provided with conventional springs.

When the bed 1s 1n use, we Wlll assume that the'swing ging bed isbelow the upper one on .,.which the patient is lying, and it is desired to reverse the position of the patient. The operator appliesthe crank 47 to the shaft 31 and turns'thecrank, so that the motion is transmitted. to'the sprocket wheels 28, and the hanger plates 27 are thereby swung around so as to extend upward as shown in Figures 3 and hand the frame 25 26 will be in the position indicated with the mattress 24: on The crank is then applied to the shaft 41, and the mattress2 l moved down by means of the screws 36 until it is in position directly upon and against the patient.. The two parts are locked-together by the latch 32, the pins 18 are removed, and the ,shaft 31 is turned backinthe opposite direction so to bringthe swingingbed immediately below the upperone as in Figure 5, and the patient will then be lying'on the mattress 24 and inexactly the reverse positionlto his former position on the mattress 24-. The shaft 41 can then be turned so as to lower the swinging bed represented by the frames 25 26 to the desired position, and the upper mattress can be" swung out of the way soas to leavedesired clearance.

Vith the patient is on the upper bed, that is on themattress 2 .1, l1e ca1i be easily placed at a desired:inclination by removing the pins I Thu it will b'e seen that I have provided a very secure an deasyineans of changing the .lJQSlflOll of a patient without wrenching or exerting him in any way, and with ease to the operator.

I claim 1. A structure of thekind described comprising a, reversible bed, hangers pivoted at thev ends of, the reversible bed, a second by the hangers, means for swinging thehangers and the second bed to a position either above or below the reversible bed, and means for locking the swinging bed a gainst swinging movement.

, 2. A structure ofthe kind described comprising a reyei sible bed, hangers pivotally fsupportedat the ends of the reversible bed, a second bedcarried by the hangers, means for swinging the hangers and the bed which they carry to a'position above or below the first mentioned bed, and means for adjusting the swinging bed up and down on its hangers.

3. A structure of the kind described comprising a reversible bed, hangers pivotally supported at the ends of the reversible bed, a second bed carried by the hangers, means for swinging the hangers to position the second bed above or below the reversible bed, and a gear and screw mechanism for adjusting the second bed up and down on its hangers.

4. A structure of the kind described comprising a bed frame, a bed pivoted on trunnions in the frame, hangers mounted on the trnnnions, a second bed carried by the hangers, a gear mechanism for swinging the hangers and their bed to carry the latter above or below the pivoted bed, and-means for adjusting the swinging bed up and down on its hangers.

5. A structure of the kind described comprising a bed pivoted to turn on its own axis, a swinging bed, means for swinging said swinging bed to a position above or below the first-mentioned bed, means for moving the beds to or away from each other, and means for rotating said beds as a unit.

6. A structure of the kind described comprising a reversible bed pivoted to turn on its own axis, a swinging bed, means for swinging said swinging bed to a position either above or below the reversible bed, means for adjusting the distance between the swinging bed and the reversible bed, and means for rotating said beds as a unit.

7. A structure of the kind described comprising a reversible bed pivoted at the ends to turn on its own axis, a second bed supported on hangers, and means for swinging the hangers and the second bed to a position above or below the first-mentioned bed, and means for rotating said beds as a unit.

8. In a hospital bed for reversing the position of a patient, a reversible bed pivoted to turn. on its own axis, a second bed support ed on hangers, said hangers swinging on the axis of the reversible bed, and means for swinging the hangers and the second bed to a position above or below the first-mentioned bed.

In testimony whereof, I have signed my name to this specification this 10th day of April, 1928.

EDMUND L. MUN SON. 

